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Date of Issue : Feb 2000 1. IDENTIFICATION
General Product Name : SODIUM HYPOPHOSPHITE Other Names : SODIUM HYPOPHOSPHITE UN No. : N/A Dangerous Goods Class : None Allocated Subsidiary Risk : None Allocated Hazchem Code : N/A Pack Group : 0 EPG : N/A Poisons Schedule : N/A Uses : Pharmaceuticals, reducing agent in electrodeless nickel plating of plastics and metals, lab reagent, substitute for sodium nitrite in smoked meats.
1.1 Physical Description / Properties
Appearance : White crystalline solid, odourless. Formula : Na H2 PO2 H2O Boiling Point : N/A deg C Melting Point : 100 deg C Vapour Pressure : N/A Specific Gravity : 1.81 (water = 1) Flash Point : N/A pH : 6-8 (50g/l H2O @ 20 degC) Solubility in water : Sol. g/l (25 deg C) Flammability Limits (as percentage volume in air) Lower Explosion Limit : N/A Upper Explosion Limit : N/A 1.2 Other Properties
Thermall decomposition: >230 deg C. Bulk density: 900 kg/m3. Solubility in water: approx 1000 g/l @ 20 deg C. Partially soluble in alcohol. 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
No information available. Eye
No information available. Skin
No information available. Inhaled
No information available. 2.2 Health Effects - Chronic
No information available.
2.3 First Aid
Swallowed
Seek medical attention if any symptoms develop.
Eye
Rinse abundantly with water.
Skin
Rinse abundantly with water.
Inhaled
Remove to fresh air.
First Aid Facilities
Ensure an eye bath and safety shower available and ready for use.
2.5 Advice to Doctor
Treat symptomatically based on individual reactions of patient and judgement of doctor.
2.6 Toxicity Data
The phosphan which is created during heating up to 230 deg C is toxic (high blood bressure, DNS-destruction).
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
None established.
3.2 Engineering Controls
Ensure adequate ventilation to keep airbourne concentrations low.
3.3 Personal Protection
Wear protective gloves, chemical monogoggles and protective clothing. If working with product at elevated temepratures - also use repsiratory protection.
3.4 Flammability
Decomposes above 230 deg C. Self igniting above 230 deg C. SAFE HANDLING INFORMATION
4.1 Storage / Transport
Keep containers closed when not in use. Store in a cool, dry place (protect from humidity, max storage temperature 25 deg C). Keep away from oxidizing agents.
4.2 Packaging / Labelling UN No. N/A Class None Allocated Sub Risk None Allocated Hazchem Code N/A Pack Group 0 EPG No. N/A Shipping Name SODIUM HYPOPHOSPHITE Hazard
Risk Phrases
Safety Phrases
4.3 Spills and Disposal
Spills
Clean up personnel should wear full protective clothing - if material exposed to elevated temperatures also wear repsiratory protection. Do not allow spilled material to enter waterways.
Collect spilled material into suitable labelled containers and hold for later disposal.
Disposal
Dispose according to all local, state and federal regulations.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Material decomposes and can self ignite above temperatures of 230 deg C. Products of thermal decomposition include phosphorous hydrogen, phosphate/ phosphite, phosphoroustrioxide. Phosphorous hydrogen (Phosphan) is self igniting.
Extinguishing Media
Firefighters should wear full protective clothing and use self contained breathing apparauts. Use water as extinguishing media. 5 OTHER INFORMATION
Other Information
Depending on the concentrations of phosphoric components, material can attirbute to the eutrophication of waters.
5.1 Contact Points
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The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use.
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